Operating means for rolling-mills.



B. WILEY.

OPERATING MEANS FOR ROLLING MILLS.

APPLIGATIOH IILED SEPT.3,19Q7.

@W $84.11, Patented Aug. 16, 1910,

WITNESSES: iNVENTOR purrn era r sparnirr lorr es,

BRENT WILEY, OF PITTSBUILG, PENNFS'SE'LVANIA, ASSIGNU'R T0 WESTINGHOUSEELEC- TRIC & MANUFACTURING COMPANY, A CORPORATION 015 PENNSYLVANIA.

OPERATING MEANS FOR ROLLING-MILLS.

bpeeifieation of Letters Patent.

Application filed September 3, 1907. Serial No. 391,246.

particularly to the actuating means for the tables upon. which ingots orbillets are ca"- ried to and from the rolls.

The object of my invention is to provide means for so actuating andcontrolling the rollers of thetables upon which the product of the millis carried to and from the shap-z ingrolls, that the rollers of eithertable may be operated alone, or those of both tables may be operatedsimultaneously, either in the same, or in opposite directions, asdesired by the attendant.

In rolling mills as heretofore constructed,

the rollers oft both tables have been operated. simultaneouslyinthe-same direction, this result being eliected, when electric motorsare employed for driving the rollers, either by connecting the motors ofthe two tables in parallel and. employing but a single con-- trollertherefor or by mechai'iically coupling the controllers. oi therespective motors so as l to render them operable by a single handle.

Since, with such anarrangement, the rollers of both, tables must beoperated in the same direction until the,ingot or billet has beencompletely fed into the rolls, and must then be reversed, considerabletime is lost in re versing the direction oi? rotation of the rollers andin feeding the ingot or billet back into the rolls with a consequential.loss of a large amount'of time and power, while the motors, or otherdevices that operate the table rollers, are subjected to very severestrains. I

According to the present"invention, the rollers of each table areactuated and con trolled. independently or those of the other, so that,it desired, when an ingot or billet is being fed into the shaping rolls,only the rollers ot the table feeding the ingotor billet may beoperated, since the shaping rolls will usually force the ingot upon thereceiving table. The rollers ot the receiving table may then be causedto return the meetor billet prwnptly to the rolls without reversingitheoperating motors, and without the delay and strain upon the motors andother parts necessarily incident to such reversal.

The accompai'lying drawing represents a rolling mill that operated'andcontrolled in accordaiuze with my invention, and it" comprises, as isusual, at set of rolls 1 between which ingots or billets are passed forreduction and shaping, and two tables and 3 respectively upon oppositesides of the set of rolls, each of the tables being; provided with aplurality of'rollers -l upon, and by means of, which the ingots orbillets are carried to and horn the rolls 1. The rollers t of the table2 are actuated through intermediate gearing 5 by means of anelectricmotor 6, and the rollers oi the table 3 are similarly actuatedby means of a motor 7. The circuits of the motors t3 and l" aregoverned, respectively, by. means of similar and suitable controllers cland 9, which, in the present instance, comprise a plurality (itseparately actuated switches 10 having operatnig solenoids 11 theeircuitsot which are governed by master controllers l2 and 13corresponding, respectively, to the motors 6' andi'. The mastercontrollers are mounted ll atentet't rin to, tote, I

upon a common base or support i l. and are provided with operating;handles 15 and 16 that project inwardly toward each other or areotherwise so disposed adjacent to each other that they may be grippedsimultane ously, orseparately, as desired, by one hand of an operator.

Since the specific arrangeinentpt" the circuits oi the systems ofcontrol for'the motors constitutes no partotmy present'invention, andsince there are many widely difl'erent systems that may be employed. tocontrol the motors, deem it unnecessary to illustrate and describe anyparticular system in detail;

Other ificans than oleetricrnoton; may also be employed, it desired, tooperate the table rollers, and such means may be controlled in a mannersimilar to that herein set :tortlu if, in the, operation ot'the will, itis desiredto cause the table 2 to feed on ingot or billet into the rolls1, only the master con-' troller 12 need be operated, the ingotor billetbeing usually discharged upon the receiving; table by the shaping"rolls; The rollers oi the table 3 may then be caused to o lerate by thecontroller '13, so as toretnrn the ingot or billet promptly to theshaping 1 motor, as has heretofore been necessary. If,

at times, it is desired to cause the rollers of both tables to operatein the same direction, the controller handles 15 and 16 may both begripped and. rotated simultaneously in the same direction, or they maybe rotated separately in the same direction to cause the two sets oftable rollers to rotate at ditterent speeds. Tl'ius the motors, and thegearing, shafting and bearings that are employed in the ope ation of,and in connection with, the table rollers, are subjected to much lesssevere Wear and strain than heretofore with the result that the rate ofdeteriorationthereof is correspondingly diminished A material saving inthe time intervc ing between the dischargoof aningot or billet from theshaping rolls and its return thereto is also effected. because it isusually necessary to reverse the direction of rotation of the tablerollers. Also by starting operation of the rollers of a table receivingan ingot or billet before the same has been completely discharged fromshaping rolls, the mill may be operated at its maximum speed with themost economical use of power.

I claim as my invention:

1. The combination with a. rolling mill comprising a set of rolls, andtables upon opposite sides thereof having rollers for conveying theingot t ir billet, oi motors for ac-. tuating the rollers of the onetable independentlyvof those of. the other, and adjacently located butindependent goterning means for the motors. l

2. The combination with a "rolling mill comprising a set of rolls, andtables upon -pposite sides thereof having rollers for con- I es? veyingthe ingot or billet, of: actuating means for the rollers, andindependent governing means therefor whereby the rollers of only onetable may be caused to rotate at a. time, or the rollers of both tablesmay be caused to rotate in the same or in om iosite directionssimultaneously, as desired.

The combination with a rolling mill comprising aset of rolls, and tablesupon opposite sides thereof having rollers tor con veying the ingot orbillet, of nmtors for actuating the table rollers, and indc iemlontgoverning devices for the motors that may be actuated eithersimultaneously or scpm ralely as desired.

at. The combination with a rolling mill coi'nprising a set oi rolls, andtables upon opposite sides thereof, having rollers ilitfl conveying aningot or billet, of motors for actuating the table rollers, andmechanical independent controllers therefor provided with operatinghandles so disposed with reference to eaclr other that. they may begripped together or separately as desired.

5. The combination With a rolling mill comprising a set of rolls, andtables upon opposite sides thereof, having rollers for conveying aningot or billet, of motors for actuating the table rollers, andmeclniuically imlependent controllers thercl'or having adjacentoperating handles.

In testimony whereof, have hereunto subscribed my name this 28th day ofAugust, 1907.

BRFNT W 1L1) l.

lVitnesses A. BUNn'rsoN, li'inxnr Hnuis.

